40.In order to show his boss what a careful worker he was,he took ________ trouble over the figures.

答案选C
意思是为了向他的老展示他是个十分仔细用心的工人,他不怕麻烦在他的形象上下功夫.
A,extensive形容词
1.广大的;广阔的;广泛的;大规模的
We had fairly extensive discussions.
我们进行了相当广泛的讨论.
They own extensive land by the ocean.
他们拥有海边的辽阔土地.
2.大量的;庞大的
The storm caused extensive damage
B,spare
及物动词 vt.
1.分出,腾出(时间,人手);分让(多余的东西)[(+for)][O1]
Can you spare me a few minutes?
你能为我挪出几分钟时间吗?
2.(常用于否定句或疑问句)节约,省用;吝惜
spare the rod
不处罚
He spared no expense in building a villa for himself.
他不惜工本为自己造了一幢别墅.
3.用不着;略去,省掉
4.使免遭;免去;解除[O1]
I want to spare him the trouble of seeing me off at the airport.
我不想麻烦他去机场为我送行.
spare someone's blushes
使某人免于脸红
5.饶恕,赦免;不伤害[O1]
They took his money but spared his life.
他们拿走了他的钱但饶了他一命.
6.剩下
We got to station at noon with time to spare.
我们中午就到了火车站,离开车还有一段时间.
不及物动词 vi.
1.节约,俭省
2.宽容,饶恕;不伤害
形容词 a.
1.多余的,剩下的;空闲的
He has nothing to do in his spare time.
他休闲时间无事可做.
2.备用的
Every car should carry a spare tire.
每辆车子应带一个备用轮胎.
3.节约的;少量的;贫乏的[(+of)]
He is spare of speech.
他很少说话.
4.瘦的
The farmer is tall and spare.
那个农夫又高又瘦.
名词 n.[C]
1.备用品
2.备用轮胎
This tire is damaged.Do you have a spare?
这个轮胎坏了,你有备用轮胎吗?
3.【英】(机器等的)备用零件[P]
此处应为形容词.
C,extra
形容词 a.
1.额外的;外加的[B]
I don't suppose they wanted any extra help.
我想他们不需要额外帮助.
2.另外收费的[F]
3.特大的;特佳的
副词 ad.
1.额外地;另外
They charge extra for wine.
喝酒他们另外收费.
2.特别地,非常地
I have to be at the office extra early tomorrow.
我明天必须很早就到达办公室.
名词 n.[C]
1.另收费用的项目;附加费用
The dinner cost twenty dollars without the extras.
除去额外费用,那顿饭花了二十元.
2.临时演员
3.(报纸的)号外
4.质量特别好的东西,上等产品
extra-
前缀 pref.
1.表示"在...之外","越出","超出"
此处也应选为形容词
D,supreme
形容词 a.
1.最高的,至上的
The Pope is the supreme leader of the Roman Catholic Church.
教皇是罗马天主教的最高领袖.
2.最大的,极度的;最重要的
This is the supreme danger of our times
所以综上可得,意思应是额外的麻烦.
take the trouble to do或者是take the trouble over\on sth
意思是不怕麻烦做某事.
其余的词语代入句子中,不通顺,所以用排除法也应选C.